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Dmitry_Shevchenko [17]
3 years ago
9

If 5 + 6i is a root of the polynomial function f(x), which of the following must also be a root of f(x)?​

Mathematics
2 answers:
shusha [124]3 years ago
7 0

The answer is (B).

Took the review test and passed.

kolezko [41]3 years ago
6 0

Answer:

5-6i

Step-by-step explanation:

The complex conjugate root theorem states that if (a+bi) is a root, then (a-bi) must also be a root and vice versa.

We know that (5+6i) is a root.

Then by the above theorem, (5-6i) must also be a root.

Hence, our solution is (5-6i).

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Ber [7]

Answer:

The 3rd option

Step-by-step explanation:

The pattern is every 2 hours is $15 so 4 hours would be equal to $30

Since 4 hours would equal 30 and we need 12 hours multiplying both numbers by 3 would get you the answer

4x3=12

30x3=90

Making it equal

7 0
3 years ago
Please help me, eshay lad
AfilCa [17]

Answer:

122.5 cm²

Step-by-step explanation:

Area of this trapezium:

1/2 × 35 × 7

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6 0
3 years ago
Read 2 more answers
Round the fraction 7 4/5 to the nearest whole number
Over [174]
Im not sure if you are saying 74/5 or 7 and 4 fifths but in the case you'r saying 74/5 you would first round to see the highest number that 5 can go to without being a decimal. Which would be 70 so you would count how many times 5 can go into 70, which would be 14, so the left over is 4/5 so you would check to see if it can be simplified which it can't so the final answer is 14 and 4/5
3 0
3 years ago
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The force F between 2 objects is inversely proportional to the square of the distance, d between them. The force is 0.36 newtons
LenaWriter [7]

Answer:

0.73 N to 2 dp.

Step-by-step explanation:

F = k/d^2   where k is a constant , F = force and d = distance.

Substituting:

0.36 = k / (6)^2

k = 36*0.36 = 12.96 s the equation is F = 12.96 / d^2.

When d = 4.2 :

F = 12.96 / 4.2^2

F = 0.73 Newtons to 2 dp.

5 0
3 years ago
Maya has 120 caramel apples to sell. Each caramel apple is covered with one
mylen [45]

Answer:

peanuts=2/5

chocolate chips=1/8

coconut=3/10

rest=sprinkles

2/5+1/8+3/10

lcm=40

<u>16 + 5 + 12</u>

     60

=33/60

60/60 -33/60

=27/60

=9 /20 apples are covered with sprinkles

9/20 x 120

<h2>=63 apples are covered with sprinkles</h2>

Step-by-step explanation:

6 0
3 years ago
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